javascript - 使用 lodash trim 对象键

Question

我想 trim 对象键 y_ 的出现次数并获得类似 useroutput 的输出:

var user =[{"data":"2","y_data1":1},{"data":"4","y_data1":3,"y_data2":3}]

var useroutput=[{"data":"2","data1":1},{"data":"4","data1":3,"data2":3}]

让我知道使用 lodash 或 javascript 的任何方法。

Answer 1

您可以使用lodash#map转换 user 数组和 lodash#mapKeys 中的每个项目转换每个用户项目的键。

const result = _.map(user, data => 
  _.mapKeys(data, (v, k) => k.replace(/^y_/, '')));

const user = [
  {"data":"2","y_data1":1},
  {"data":"4","y_data1":3,"y_data2":3}
];

const result = _.map(user, data => 
  _.mapKeys(data, (v, k) => k.replace(/^y_/, '')));

console.log(result);

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<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.min.js"></script>

纯JS解决方案:使用Array#map用于项目转换，以及 Object.entries() 的组合和 Array#reduce实现关键转型。

const result = user.map(data =>
  Object.entries(data).reduce(
    (r, [k, v]) => (r[k.replace(/^y_/, '')] = v, r),
    {}
  )
);

const user = [
  {"data":"2","y_data1":1},
  {"data":"4","y_data1":3,"y_data2":3}
];

const result = user.map(data =>
  Object.entries(data).reduce(
    (r, [k, v]) => (r[k.replace(/^y_/, '')] = v, r),
    {}
  )
);

console.log(result);

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